Wrench.



C. E. GARRETSON. WRENCH.

APPLICATION FILED MAY 1. I916.

"Patented Sept. 19,191

mvem'on miroaky iugreduced ends which fit within the lianges 20. Q2 of the respective collars l9 and 31 thus providing bearings upon which the handle l3 may be rotated.

On the lower end of the stem 16 and on me edge thereof are formed a number of traosi er-c ribs or teeth that project laterally beyond each side of said stem as shown 4. These ribs or teeth have their outer edges of areuate shape and are adapted to engage and interlock with a. MI'lls ol' cooperating ribs 26 on the inner side oi the tubular handle 13. The ribs on the handle extend from end to end thereof ill so that in whatever position the movable jaw A by rotatll may be placed the ribs 26 may mg the handle into the proper position be made to engage with the teeth 25 on the stem 16 and lock the jaw against further moven'ient. The length of the teeth or ribs 23 and 2G such that when in perfect engagement as. in Fig. 4 it is only necessary to give the handle a quarter revolution to disengage said teeth and permit the jaw 11 to be moved. To indicate to the user of the wrench when such teeth are interlocked and when disengaged suitable marks 27, 28 are made on the collar 19 at the proper angular distance apart and a. further mark 29 is made on the handle 13 that cooperates with said marks on the collar to indicate when the teeth are engaged and when disengaged. The marks 27, 28 on the collar are distinguished by the words On and Off. Any other words may be used however in place of these.

The operation of the wrench is readily understood from the above description. By turning the handle 13 until the mark 29 coincides with the mark designated by Oil. the teeth 26 will be disengaged from the teeth 25 and the jaw 11 may be moved to or fr m the fixed jaw For any desired distance. After setting the jaw 11, a reverse movement of the handle 13 until the mark -29 coincides with the mark 27 indicated by ("m," will again cause the teeth 26 to engage the teeth and lock the jaw 11 immovable.

I claim:

1. In a wrench having a fixed jaw and a movable jaw. the latter being formed with a rectangular slot on each side extending in line, with its direction of i'novement. of a stem on said fixed jaw comprising two parallcl members spaced apart the upper rec ta'igular portions of which are seated in the slots in said movable jaw to form guides for the same. the lower ends of said members b ing s mi--cyliiulrical. a stem on the movab e jaw slidable within the space between the liXe-d stem members and having a plurality of teeth or ribs on one edge disposed at right angles to the length 01'' said stem, a

two-part tubular handle mounted to rotate about the ends of the semi-cylindrical portion of said stems and secured on said fixed Stem against longitudinal movement, flanged collars fixed on said semi-cylindrical portions of said fixed stem to hold the handle sections together and permit rotation of the handle, and teeth or ribs on the interior of said handle adapted to engage and disengage the teeth on the movable stem as said handle is partly rotated and lock said movable jaw against movement when the teeth are engaged.

In a wrench having a fixed jaw and a movable jaw, a stem on said fixed jaw comprising two parallel members spaced apart between which the movable jaw is adapted to slide and serving as a guide for said jaw, a stem on the movable jaw disposed between said fixed jaw members, a plurality of curved teeth or ribs on one edge of said slidable stem and extending beyond the sides thereof, said teeth or ribs extending perpendicular to the direction of movement of said stem, a collar having a polygonal opening mounted on said fixed stem upon a similarly shaped shoulder to prevent rotation, a second collar on the extreme end of said fixed stem and secured thereto by a pin. a sectional tubular handle surrounding the fixed and movable stems rotatable between and held together by said collars, and teeth or ribs on the inner surface of one of said handle sections adapted to engage and disengage the teeth on the movable stem when the handle is partly rotated and lock said stem against movement when the teeth are engaged.

3. In a wrench having a fixed jaw and a movable jaw, a stem projecting from said fixed jaw and divided longitudinally throughout its length by a centrally disposed slot, guide ways in opposite sides of the movable jaw in which said divided stem is adapted to slide, a stem projecting from the movable jaw and slidable in the fixed stem, teeth or ribs on one edge of said slidable stem at the lower end thereof. spaced circular collars having projecting and no posing flanges fixed against rotation on the sl tted .;tem. a tubular handle mounted to rotate in said flanged collars, and a series of teeth or ribs within said handle t1 engage and disengage the teeth on the movable stem as said handle is rotated.

4. In a wrench having a fixed jaw. and a movable jaw formed with a guide slot on each side. a divided stem on said fixed jaw straddling the movable jaw and seated in said guide ways to guide the movable law a stem on said movable jaw slidable between the members of the divided stem, flanged collars spaced apart a: l n-ounted on the divided stem. a tubular handle formed of longitudinal sectionsrotatably mounted beby the teeth on the handle upon pertial rotatween said collars, the flanges of which coltion thereof. 10 lars engage the ends of the handle seetions In testimony whereof I allix my signature and prevent them separating. a plurallty of in presence of two Witnesses. transverse teeth or ribs on the interior of CHARLES E. GARRETSON.

one of the handle sections, and a plurality i Witnesses: of similar teeth or ribs on the stem of the W. R. CALL, movable jaw to be engaged and disengaged L. MARCUM. 

